I believe I give off a vibe that attracts ridiculous, selfish, and crazy men. How do I change that vibe and meet nice men?

I have a tendency to date crazy men. Men who stalk me, suggest that they’d like to sleep with my sister, scream at me for infractions such as not calling them back within 15 minutes, refuse to make plans with me in advance or when they do show up on the wrong day or hours late, like their own Facebook statuses, send me incoherent texts/e-mails, or start dating someone else without telling me.

I genuinely don’t know why I tend to attract these men, and I think I might be giving off a vibe that is appealing to bad men. How do I change this pattern??